Electrical connecter



Patented May 27, 1930 UNITED STATES PaTElxlT OFFICE HANS NE'UBERT, OF ANNABERG, GERMANY, ASSIGNORVTO GENERAL ELECTRIC COM- PANY, A CORPORATION F NEW YORK ELECTRICAL coNNEc'rEn Application led July 15, 1927, Serial No. 206,060, and in Germany November 26, 1928.

My inventionrelates to electrical connecters., more particularly to detachable plug connecters such as are used with electric heating and cooking devices, and has for its U object the-,provision of a simple, reliable and eiicient means of this character which operates at a reduced temperature.

The contact devices of heating and cooking utensils in operation oftenattain such high temperature that the .insulation of the conductor cords is damaged. According to this invention this disadvantage is obviated by reducing, as far as possible, the temperature at the connectin clam of the feed conductor, which is e ected y a great reduction of temperature within'the connecting device itself. This reduction in temperature in the connecting device isdn fact attained by making the connectigrr `between the utensil in operation and vtl'1'e`feed conductor of la material which is aVV poor heat conductor, such as steel, chromefnl'ckel, constantan, German silver or the like. v, The decrease in the temperature canbe, still further increased by employing bandshaped feed conductors between the socket .and clamp and also by using1 perforated socket housings. or a more complete understanding of my invention reference shouldbe had to the 3@ accompanying drawing; Fig. 1 of which is a sectional view of a connecter plug embodying'my invention; while Fig. 2 is a fragmentary side elevation view showing a conducting part of Fig. 1.

Referring to the drawing showing one embodiment of the invention, the contact socket housing" 10, made of a suitable electrically insulating material, is attached to a exible, insulated twin feed conductor 11 .by means 4o of contact clamps 12 carried by the housing, which also carries at its lower end the plug sockets 13 adapted to fit on contact pins carried by the utensil to be operated. According to the invention these plug sockets 13, 4;; and also the feed conductors 1,4 electrically connecting the plug sockets 13 and the contact lamps 12, are made of a material which is e poor heat conductor, such as steel, chrome-nickel, constantan, German silver or au the like. Furthermore, the feed conductors and said leads made of material having poor l heat conductivity.

2. A plug connecter comprising an insulating support, a pair of plug contacts carried at one end of said support, a pair of clamps carried by said support adjacent the opposite end thereof, and electrical conductors connecting said contacts and said clamps made of a material having poor heat conductivity. l

3. A plug connecter comprising an insulating support, a pair of plug contacts carried at oneend of said support, a pair of clamps carried by said support adjacent the opposite end thereof, and electrical conductors of band form'connecting said contacts and said clamps, said conductors being made of a material having poor heat conductivity.

In witness whereof, I have hereunto set my hand this 11th day of June, 1927.

HANS NEUBERT. 

